its 2008. only 200? its not like its significantly broken. im using it to write this.

In perfect condition, Mac2Sell lists it at $600. Given it's a 4th generation machine and they don't take that into account, it might be worth up to $850 (tops).

With what appears to be liquid damage, it's a total crapshoot for the buyer. It depends on how savvy they are, but chances are any buyer you get is going to be handy with a screwdriver, and therefore pretty well versed in symptoms and cause. That's where I'm coming up with the estimate.

But again, it all depends on the buyer. eBay would be your best option, just be sure to thoroughly document the issues so that you set a reasonable expectation.

Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!